Shulou(Shulou.com)06/03 Report--

First, prepare two nginx, two tomcat, and one mysql database, as follows

NginxIP address: 192.168.20.39 (lvs01)

192.168.20.40 (lvs02)

Drift address: 192.168.20.66

TomcatIP address: 192.168.20.41 (TM01)

192.168.20.42 (TM02)

MysqlIP address: 192.168.20.50

= 192.168.20.39 (lvs01) = =

Vi / usr/local/nginx/conf/nginx.conf

In http {

Include mime.types

Under default_type application/octet-stream;, remove #

Log_format main'$remote_addr-$remote_user [$time_local] "$request"'

'$status $body_bytes_sent "$http_referer"'

'"$http_user_agent"$http_x_forwarded_for"'

Increase under gzip on

Include / usr/local/nginx/conf/conf.d/*.conf; # points to the subprofile

Cd / usr/local/nginx/conf/

Mkdir conf.d # create a subconfiguration folder

Cd conf.d/

Vi lvs01.conf

Server {

Listen 80

Server_name lvs01 192.168.20.39

Index index.html index.jsp

Root / usr/local/nginx/html

Access_log / usr/local/nginx/logs/tomcat.aa.com_access.log main

Location / {

Proxy_set_header HOST $host

Proxy_set_header X-Real-IP $remote_addr

Proxy_set_header Client-IP $remote_addr

Proxy_set_header X-For $proxy_add_x_forwarded_for

Proxy_pass http://center_pool; # sends all files to the tomcat server for processing

}

}

Vi pool.conf

Upstream center_pool {

Server 192.168.20.41:8080

Server 192.168.20.42:8080

Ip_hash; # stabilize ip session

}

Startup script

Vi / etc/init.d/nginx

#! / bin/bash

PROG= "/ usr/local/nginx/sbin/nginx"

PIDF= "/ usr/local/nginx/logs/nginx.pid"

Case "$1" in

Start)

$PROG

Stop)

Kill-s QUIT $(cat $PIDF)

Restart)

$0 stop

$0 start

Reload)

Kill-s HUP $(cat $PIDF)

*)

Echo "Usage: $0 {start | stop | restart | reload}"

Exit 1

Esac

Exit 0

Ln-s / usr/local/nginx/sbin/nginx / usr/local/sbin/

Chmod + x / etc/init.d/nginx

Chkconfig-add nginx

Nginx-t # checks whether the error is reported.

Service nginx start

Netstat-anpt | grep 80

-- deploy keepalived--

Yum-y install\

Popt-devel\

Kernel-devel\

Openssl-devel

Tar xvf keepalived-1.4.2.tar.gz

Cd keepalived-1.4.2

. / configure-- prefix=/

Make & & make install

Cp keepalived/etc/init.d/keepalived / etc/init.d/

Systemctl enable keepalived

Cd / etc/keepalived/

Vi keepalived.conf

! Configuration File for keepalived

Global_defs {

Route_id NGINX-01

}

Vrrp_script nginx {

Script "/ opt/nginx.sh"

Interval 2

Weight-10

}

Vrrp_instance VI_1 {

State MASTER # status is master

Interface ens33

Virtual_router_id 51

Priority 150 # priority is 150

Advert_int 1

Authentication {

Auth_type PASS

Auth_pass 1111

}

Track_script {

Nginx

}

Virtual_ipaddress {

192.168.20.66 # Drift address ip

}

}

Vi / opt/nginx.sh # script that turns nginx and keepalived on and off at the same time

#! / bin/bash

# Filename:nginx.sh

$(ps-ef | grep keepalived | grep-v grep | wc-l)

If [$A-gt 0]; then

/ etc/init.d/nginx start

Else

/ etc/init.d/nginx stop

Fi

Chmod + x / opt/nginx.sh

Systemctl start keepalived

-Test--

Systemctl stop keepalived

Killall-9 nginx (yum install psmisc-y)

Netstat-anpt | grep 80

Systemctl start keepalived

Netstat-anpt | grep 80

From this we can see that nginx can be turned on and off along with keepalived.

= 192.168.20.40 (lvs02) =

The main configuration file is the same as the primary server

Vi / usr/local/nginx/conf/nginx.conf

In http {

Include mime.types

Under default_type application/octet-stream;

Log_format main'$remote_addr-$remote_user [$time_local] "$request"'

'$status $body_bytes_sent "$http_referer"'

'"$http_user_agent"$http_x_forwarded_for"'

Increase under gzip on

Include / usr/local/nginx/conf/conf.d/*.conf; # points to the subprofile

Cd / usr/local/nginx/conf/

Mkdir conf.d

Cd conf.d/

Vi lvs02.conf

Server {

Listen 80

Server_name lvs01 192.168.20.40

Index index.html index.jsp

Root / usr/local/nginx/html

Access_log / usr/local/nginx/logs/tomcat.aa.com_access.log main

Location / {

Proxy_set_header HOST $host

Proxy_set_header X-Real-IP $remote_addr

Proxy_set_header Client-IP $remote_addr

Proxy_set_header X-For $proxy_add_x_forwarded_for

Proxy_pass http://center_pool;

}

}

Vi pool.conf

Upstream center_pool {

Server 192.168.20.41:8080

Server 192.168.20.42:8080

Ip_hash

}

Vi / etc/init.d/nginx

#! / bin/bash

PROG= "/ usr/local/nginx/sbin/nginx"

PIDF= "/ usr/local/nginx/logs/nginx.pid"

Case "$1" in

Start)

$PROG

Stop)

Kill-s QUIT $(cat $PIDF)

Restart)

$0 stop

$0 start

Reload)

Kill-s HUP $(cat $PIDF)

*)

Echo "Usage: $0 {start | stop | restart | reload}"

Exit 1

Esac

Exit 0

Ln-s / usr/local/nginx/sbin/nginx / usr/local/sbin/

Chmod + x / etc/init.d/nginx

Chkconfig-add nginx

Nginx-t

Service nginx start

Netstat-anpt | grep 80

-deploy keepalived

Yum-y install popt-devel\

Kernel-devel\

Openssl-devel

Tar xvf keepalived-1.4.2.tar.gz

Cd keepalived-1.4.2

. / configure-- prefix=/

Make & & make install

Cp keepalived/etc/init.d/keepalived / etc/init.d/

Systemctl enable keepalived

Cd / etc/keepalived/

Vi keepalived.conf

! Configuration File for keepalived

Global_defs {

Route_id NGINX-02

}

Vrrp_script nginx {

Script "/ opt/nginx.sh"

Interval 2

Weight-10

}

Vrrp_instance VI_1 {

State BACKUP # status is backup

Interface ens33

Virtual_router_id 51

Priority 100 # priority is 100, so we can see that it is standby.

Advert_int 1

Authentication {

Auth_type PASS

Auth_pass 1111

}

Track_script {

Nginx

}

Virtual_ipaddress {

192.168.20.66

}

}

Vi / opt/nginx.sh

#! / bin/bash

# Filename:nginx.sh

Avatar $(ip addr | grep 192.168.20.66 wc 32 | grep-v grep | wc-l)

If [$A-gt 0]; then

/ etc/init.d/nginx start

Else

/ etc/init.d/nginx stop

Fi

Chmod + x / opt/nginx.sh

Systemctl start keepalived

-- Test verification--

Ip addr show dev ens33 from server (192.168.20.40)

Then implement the failure (192.168.20.39) systemctl stop keepalived on the main server

Killall-9 nginx

After returning to the slave server (192.168.20.40) ip addr show dev ens33 (found that the drifting address is coming)

= = Database =

Mysql-u root-p

Create database slsaledb; # create a database

GRANT all ON slsaledb.* TO 'testuser'@'%' IDENTIFIED BY' admin123'

# Grant permissions

Flush privileges; # Refresh permissions

Quit

Mysql-u root-p

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